Menzi Muck Menzi IHI 45v4, Руководство оператора

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OPERATION
45V4 • 55V4 • 60V4 ENG 2-23
EMERGENCY ACTIONS IF ENGINE STOPS
If the machine stops due to an engine trouble in the
condition where the boom is raised, the boom will not
lower even though the boom operation lever is set to the
low position. If the machine is left in this condition, the
boom is in danger of dropping. Lower the boom by one of
the methods shown below.
x
If the starting motor runs though the engine does
not start
In the state in which the operation lock lever is pressed
down, push down the boom operation lever and retain it in
that state, and put the START switch to the START
position, and lower the boom while rotating the engine by
the starter motor.
Do not rotate the starting motor for 15 seconds or
more. Wait two minutes or so and restart the motor
then.
x
If the engine does not rotate at all
1. Open the cover (1).
2. Loosen the lock nut (3) of the overload relief valve (2)
for lifting the boom above the control valves (1).
Loosen the adjust screw (4) gradually.
3. Stop loosening the adjust screw when the boom begins
to lower. Wait until the bucket moves down to the
ground.
Do not turn back the adjust screw. It requires
special adjustment technique accompanied by
pressure measurement. Ask our service office to
repair the engine and adjust the screw.
(In the case of the accumulator specification – Option)
If it is within about 30 seconds, if the starter switch is put to the “ON” (ACC) position, and the
boom operation lever is lowered while the operation lock lever is kept pushed down, then the
boom can be lowered.
If the boom does not come down, lower the boom using the above method.
Overload relief valve
WC-C201180
3
4
Machine outside Machine center side